fastboot oem readcid
Common CIDs: HTC__621 (Taiwan), HTC__001 (Europe), BS_US001 (USA). Firmware Change Update on HTC One X9
The HTC One X9’s standout feature—optical image stabilization—relies on firmware to control the tiny servomotors. An outdated firmware can cause OIS rattling or failure to engage. A firmware change update recalibrates the OIS PID controllers, reducing blur in low-light shots. A firmware change update recalibrates the OIS PID
. If the connection broke now, the firmware would be corrupted. After ten tense minutes, the HTC One X9 vibrated and rebooted. The familiar HTC logo appeared, followed by the "Android is starting" screen. After ten tense minutes, the HTC One X9
While feature additions are absent, the firmware changes directly address hardware-level glitches that cannot be fixed by app or OS patches alone. HTC continues to honor its commitment to reliability for the One X9 series, even in its extended support lifecycle.
Use this method if you want to install a different regional firmware or a custom ROM (like LineageOS).
Rename the downloaded firmware ZIP file to 2PS5IMG.zip .